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Is this normal (80mph top speed under AC load in the heat)

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Basically, I'm wondering if this is just normal behavior, or if I'm short on power somehow.

 

1992 Loyale wagon, 5 speed, EA82.

 

100F weather, 700# of driver/passengers/cargo

 

AC on max, blower on 4.

 

Running down the highway, I couldn't get much past 80mph - I was just running most of the trip with my foot on the floor, turning the AC down if I was going up a hill.

 

Cooler weather seems to be fine, especially with the AC off. Low power, but much better than it was.

 

Is this typical under load in the hot, or am I short on power somewhere?

 

-=Russ=-

My wagon seems to be about the same. Its an 88 SPFI, just like your 92. Seems the hot weather really seems to drag on it. I'm of course at a higher elevation.

 

Borrow a timing light and check the ignition timing. I found I can run the wagon up to 30 degrees without any ill-effects and still use regular gas.

  • Author
My wagon seems to be about the same. Its an 88 SPFI, just like your 92. Seems the hot weather really seems to drag on it. I'm of course at a higher elevation.

 

Borrow a timing light and check the ignition timing. I found I can run the wagon up to 30 degrees without any ill-effects and still use regular gas.

 

It's around 22-24deg initial advance. Even at that advance, it seemed like I was getting pinging on 87 - no complaints, because 89 is cheaper here in Iowa. I'm actually planning to retard the timing some in an attempt to gain back fuel economy.

 

-=Russ=-

I've only had my EA82s up beyond that a handful of times, and they were all downhill and without A/C...

heh, i took my gl10 up to 102 on the alligator alley.. thats a highway across the glades from lauderdale to naples, so its a loooong flat grade.. but it was no struggle to get it up there. no WINGFOOT, i mean, i was laughing at it with my little brother (we DID grow up in sports cars, sorry.) but i wasnt quite topped out on RPMS or throttle... just ran outta stones. just as well, the hiway patrol pulled me over about fifteen miles later for doing eight over.. i came up on a pod of traffic he was in the front of, and instead of react to him, i played it cool and kept my pace.. so i got a written warning. :rolleyes: but thats 102, with a 2wd 3AT, no AC, windows... i dont remember. probably up :eek: (thank god for the vent lever/knob!!) and it was in late march, so like 75 degrees out. but this AC man, she sure does suck up the HP. i just got mine working well earlier this summer and i dont believe how much it can make a difference in performance/economy :mad: ive never had an AC before tho, so i am kinda just now getting used to it.

 

just one more reason to switch to a five speed!

It's around 22-24deg initial advance. Even at that advance, it seemed like I was getting pinging on 87 - no complaints, because 89 is cheaper here in Iowa. I'm actually planning to retard the timing some in an attempt to gain back fuel economy.

 

-=Russ=-

Yeah, I'm also living at 5500 feet here. If I'm not mistaken, Iowa is around 1000 feet. So, I'm sure that helps. Regular here is even 85 octane.

  • Author

Ok. So nothing's wrong with my car, it's just being an EA82 Subaru with AC. :D

 

Hopefully getting the cats out of the exhaust system will help some, though. I plan to replace them with a presilencer when I do the exhaust work. My '87 GL feels like it has more power, but it just comes off the y-pipe into a glasspack, then exits.

 

-=Russ=-

sounds about right. im just proud of the 102, and honestly thats as fast as i have ever driven..

 

suspensions in my cars havent all been worthy of three digits.

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